The cold dude...As for the worst thing I've done to a friend. Well a few years ago in algebra 1 our teacher gave us a formal assessment grad every week that was based on the grade 8 curriculum(we were in an advanced class) my friend didn't do it and asked me for the answers I ended up giving him to answers from the week before and since the assignment was turned in online he ended up getting a 3%... On a double weighted test grade. His average at before that was a C+